diff --git a/arch/arm/dts/k3-am65-main.dtsi b/arch/arm/dts/k3-am65-main.dtsi
index 2409344..adcd634 100644
--- a/arch/arm/dts/k3-am65-main.dtsi
+++ b/arch/arm/dts/k3-am65-main.dtsi
@@ -8,13 +8,13 @@
 &cbass_main {
 	gic500: interrupt-controller@1800000 {
 		compatible = "arm,gic-v3";
-		#address-cells = <1>;
-		#size-cells = <1>;
+		#address-cells = <2>;
+		#size-cells = <2>;
 		ranges;
 		#interrupt-cells = <3>;
 		interrupt-controller;
-		reg = <0x01800000 0x10000>,	/* GICD */
-		      <0x01880000 0x90000>;	/* GICR */
+		reg = <0x00 0x01800000 0x00 0x10000>,	/* GICD */
+		      <0x00 0x01880000 0x00 0x90000>;	/* GICR */
 		/*
 		 * vcpumntirq:
 		 * virtual CPU interface maintenance interrupt
@@ -23,9 +23,50 @@
 
 		gic_its: gic-its@18200000 {
 			compatible = "arm,gic-v3-its";
-			reg = <0x01820000 0x10000>;
+			reg = <0x00 0x01820000 0x00 0x10000>;
 			msi-controller;
 			#msi-cells = <1>;
 		};
 	};
+
+	secure_proxy_main: mailbox@32c00000 {
+		compatible = "ti,am654-secure-proxy";
+		#mbox-cells = <1>;
+		reg-names = "target_data", "rt", "scfg";
+		reg = <0x00 0x32c00000 0x00 0x100000>,
+		      <0x00 0x32400000 0x00 0x100000>,
+		      <0x00 0x32800000 0x00 0x100000>;
+		interrupt-names = "rx_011";
+		interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	main_uart0: serial@2800000 {
+		compatible = "ti,am654-uart";
+		reg = <0x00 0x02800000 0x00 0x100>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
+		interrupts = <GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <48000000>;
+		current-speed = <115200>;
+	};
+
+	main_uart1: serial@2810000 {
+		compatible = "ti,am654-uart";
+		reg = <0x00 0x02810000 0x00 0x100>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
+		interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <48000000>;
+		current-speed = <115200>;
+	};
+
+	main_uart2: serial@2820000 {
+		compatible = "ti,am654-uart";
+		reg = <0x00 0x02820000 0x00 0x100>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
+		interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>;
+		clock-frequency = <48000000>;
+		current-speed = <115200>;
+	};
 };